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LED ANIMATED CHRISTMAS TREE WITH CARD MUSIC MODULE-sapin De Noël Musical

Introduction: LED ANIMATED CHRISTMAS TREE WITH CARD MUSIC MODULE-sapin De Noël Musical

In the Eighties ELEKTOR published in its review a small twinkling Christmas tree, I took as a starting point this idea to carry out that which will follow.... This little Christmas tree is 9 cm high and requires no programing, the animation of LED uses a single IC, the module for the melody need an old musical Christmas card. all schemes and doc are in a ZIP file at the end of this instructable I do not know English very well if you find mistakes in this instructable please leave me a message with the correction

WARNING: If you use the old adapter (with adjustable voltage of 3 to 12 Volt) must use 7.5 Volts switch because this type of adapter is not regulated and the voltage is higher) Software used : free GPL Kicad

POWERING THE TREE : Power is supplied with a 9 Volts battery or rechargeable NiMH 8.2 Volts . You can also work with a 9 Volt power supply output in this case it is necessary to remove the old battery to get the connector and to solder the son of exit 9 -volt power supply to this connector in the + and - . I tested the 9V battery of the tree with activated musical module, it only lasts 2 to 3 days, I recommend the power supply unit if you use it in your home

Step 2: ELECTRONIC EXPLANATION:

Schematic : This LED tree is made around a 14-stage binary counter the CD4060 , the oscillator used pins 9 10 and 11 and the capacitor used for this oscillator can take values ​​to 100nF 220nF according to the desired rate of flashing for LEDs see the schematic.

There is also possible to connect a music module ( recovered from a Christmas card ) these modules work with two 1.5 volt button battery connected in series or battery 3V type CR2016 or CR2032 for these models a 3.3 volt zener diode and a resistance of 56 ohms or 5.1 volts and a resistance of 39 Ohms used to adjust the voltage of the 9V battery musical module . Some works with a 1.5 volt battery and a small tip , it is possible with the same 9 volt battery for it I combined three 1N4148 diodes in series with a resistor 10KOhms the voltage drop of a diode is approximately 0.6 Volts , the addition of 10 microfarad capacitor acts as a reservoir. In this instructable , I described the model using a musical module 3.3 Volts . , The fourth diode 1N4148 is a power actuator . All components except the LEDs are soldered copper side the procedure is as follows: CI to support the resistance of the pin musical module , capacitor , diodes and bend the legs to the horizontal , cut to length and weld like CMS , weld pressure 9V (without the sheath ) and the shunt supply 4060, solder the capacitor 10 mF ( upside down) on the + and - terminals of the power of music module. Glue the decorative side component ( I have attached a model) and the varnish , then drill and solder the LEDs. CAUTION: Do not forget the shunts (red wire on the screenshoot) that connects the battery to the + CI 4060 for those who do not want to use Kicad, here is the PCB (mirrored) Just print it on transparent ink jet or laser. attention should be writing upside down on the transparent Then you tape it on the PCB side inked on copper sensitized and exposing with UV platesetter Tip: If you use an inkjet, it is best to make two transparent and tape them together, overlapping carefully, it gives better results in the burning of PCB.see the following pictures: